Which of the following guards the opening of hepatopancreatic duct into the duodenum ?

(1) Illeocaecal valve

(2) Pyloric sphincter

(3) Sphincter of Oddi

(4) Semilunar valve

Subtopic:  Histology of Gut | Movement of Food in Gut |
 89%
From NCERT
NEET - 2016
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In the stomach, gastric acid is secreted by the:-
(1) parietal cells

(2) peptic cells

(3) acidic cells

(4) gastrin secreting cells

Subtopic:  Gastric Secretions |
 61%
From NCERT
NEET - 2016
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The primary dentition in human differs from permanent dentition in not having one of the

following type of teeth

1. Canine                   

2. Premolars

3. Molars                   

4. Incisors

Subtopic:  Alimentary Canal: Oral Cavity & Teeth |
 87%
NEET - 2015
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The enzyme that is not present in succus entericus is

(1) maltase

(2) nucleases

(3) nucleosidase

(4) lipase

Subtopic:  Intestinal Secretions |
 55%
From NCERT
NEET - 2015
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Which of the following statement is not correct ?

1. Brunner's glands are present in the submucosa of stomach and secret pepsinogen.

2. Goblet cells are present in the mucosa of intestine and secret mucus.

3. Oxyntic cells are present in the mucosa of stomach and secret HCl.

4. Acini are present in the pancreas and secrete carboxypeptidase

Subtopic:  Histology of Gut | Peristalsis: Gland in Alimentary Canal |
 74%
NEET - 2015
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Hints

Gastric juice of infants contains?

1. maltase, pepsinogen, rennin

2. nuclease, pepsinogen, lipase

3. pepsinogen, lipase, rennin

4. amylase, rennin, pepsinogen

Subtopic:  Gastric Secretions |
 61%
NEET - 2015
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Hints

Which one of the following statement is false regarding digestion and absorption of food

in humans?

1. Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

2. Glucose and amino acids are absorbed with the help of carrier ions like Na+.

3. Chylomicrons are small lipoprotein particles that are transported from intestine into

blood capillaries.

4. About 30% of starch is hydrolysed by salivary amylase in our mouth.

 

Subtopic:  Absorption: Part 1 | Absorption |
 73%
From NCERT
NEET - 2009
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What will happen if the secretion of parietal cells of gastric glands is blocked with an

inhibitor?

1. Gastric juice will be deficient in chymosin

2. Gastric juice will be deficient in pepsinogen

3. In the absence of HCl secretion, inactive pepsinogen is not converted into the active

enzyme pepsin

4. Enterokinase will not be released from the duodenal mucosa and so trypsinogcn is not

converted to trypsin

Subtopic:  Gastric Secretions |
 85%
From NCERT
NEET - 2008
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Which one of the following is the correct matching of the site of action on the given

substrate, the enzyme acting upon it and the end product?
1. Duodenum :TriglyceridesTrypsinMonoglycerides
2. Small intestine :Starchα-amylaseDisaccharide (maltose)
3. Small intestine :ProteinsPepsinAmino Acids
4. Stomach :Fats LipaseMicelles

Subtopic:  Pancreatic Secretions | Intestinal Secretions | Absorption: Part 1 | Absorption: Part 2 | Absorption |
 51%
NEET - 2008
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Hints

The following is a scheme showing the fate of carbohydrates during digestion in the

human alimentary canal. Identify the enzymes acting at stages indicated as A, B, C

and D. Choose the correct option from those given.


1. A = Amylase, B = Maltase, C = Lactase,D = Invertase

2. A = Amylase, B = Maltase, C = Invertase,D = Lactase

3. A = Amylase, B = Invertase, C = Maltase, D = Lactase

4. A = Amylase, B = Lactase, C = Maltase, D = Invertase

Subtopic:  Movement of Food in Gut |
 86%
From NCERT
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